Thermally conductive, electrically insulative laminate

Details Thermally conductive, electrically insulative laminate Thermally conductive, electrically insulative laminate

1987-10-30

1989-03-07

Lusignan, Michael

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

165185, 174 685, 428328, 428329, 428339, 428458, 428901, B32B 1508, H05K 346

Patent

active

048105635

ABSTRACT:
A thermally conductive laminate structure for use as a mounting base and/or chassis attachment member in combination with solid-state electronic devices, the laminate preferably comprising up to five layers including a pair of outer metallic layers disposed on opposite sides of center composite layers of electrically insulative layers separated by an interposed metallic layer. The center insulative layers are films of polyimide(amide) material, with the polyimide(amide) film being filled with a quantity of aluminum oxide, boron nitride, or other suitable particulate solid in an amount ranging from between about 30% and 100% by weight of polyimide(amide) solids. The outer layers are metallic, with the base member being a metallic pad of copper or aluminum, and with the opposed metallic layer being copper and arranged in a printed circuitry pattern or array.

REFERENCES:
patent: 4492730 (1985-01-01), Oishi et al.
patent: 4574879 (1986-03-01), DeGree et al.
patent: 4670325 (1987-06-01), Bakos et al.

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